GRAPEVINE PLANT denominated &#39;Iniagrape-one&#39;

ABSTRACT

A new and distinct variety of grapevine denominated ‘Iniagrape-one’ which is characterized by its midseason ripening. Its fruit is attractive blue-black, with seed rudiments, broad ellipsoid-narrow ellipsoid fruit shape, difficult berry separation from pedicel, firm texture with very good particular flavor because its acidity and sugars-acid ratio. The clusters are large in size, conical and medium density. Good productive capacity and keeping and shipping quality.

BACKGROUND AND SUMMARY OF THE INVENTION

The present invention relates to the discovery and asexual propagationof a new variety of grapevine, Vitis vinifera L. denominatedIniagrape-one. This new cultivar resulted from controlled hybridizationbetween Flame Seedless (♀) and Black Seedless (♂) performed in 1998 atLa Platina Experiment Research Center in Santiago Chile (latitude 33°34,32 S, longitude 70° 37,41 S, altitude 631 meters above sea level),corroborated by molecular markers techniques. Plants were produced frommaternal parent Flame Seedless using embryo rescue procedures (Emershadand Ramming, Amer. J. Bot. (1984), 71:873-877; Emershad et al., Amer. J.Bot. (1989), 76:397-402; Ramming, HortScience (2008) 43(3):945-946). Theoriginal vine was planted in 2000 at La Platina Experiment ResearchCenter in Santiago Chile, and selected in 2004.

‘Iniagrape-one” is vigorous and produces a strong vine when grafted onFreedom or Harmony rootstocks. Cane or spur pruning may be used becauseof its high bud fruitfulness along the shoots. In the central area ofChile (Aconcagua Valley 32° 52 S, 70° 38 W)), budbreak occurs aroundSeptember 22^(nd), and flowering around November 15^(th).

The fruit is blue-black, ellipsoid shape, with large berries, about 8gr. when is sprayed with gibberellic acid, containing 2 to 3 rudimentarysoft seed traces per berry. Occasionally, depending on location and theseason, some few berries contain 1 seed.

This behavior is similar to Autumn Royal cultivar. The clusters arelarge in size, about 600-800 gr., conical and medium density. The fruithas a good export market potential for having good keeping and shippingquality.

‘Iniagrape-one’ is harvested in the middle of February in the centralarea of Chile (Aconcagua Valley 32° 52 S, 70° 38 W)), one week afterBlack Seedless and Midnight Beauty and 3-4 before Autumn Royal cultivar.‘Iniagrape-one” differs from those varieties for its complete uniformblue black color without the need for any hormonal spray. It has adistinct particular good flavor gives by ration sugar acidity at harvesttime (19-21° brix and 0.9-1% acidity). It also differs from BlackSeedless for having better keeping and shipping quality. The new varietyhas no problem of shattering during harvest or post-harvest due to adifficult separation of the berry pedicel. For the species MidnightBeauty separation of the berry pedicel has been classified as medium,and in Autumn Royal the union between the rachis and the pedicel isfragile, and berries can be separated from the rachis during harvesting.Unlike Autumn Royal, ‘Iniagrape-one’ has no tendency to crack.

The new ‘Iniagrape-one’ variety has shown to maintain its distinguishingcharacteristics through successive asexual propagation by, for example,cuttings.

BRIEF DESCRIPTION OF THE FIGURES

The drawings of the grapevine of the present invention are colorphotographs showing in FIG. 1 a typical cluster of ‘Iniagrape-one’. FIG.2( a) corresponds to the upper surface of a mature leaf and FIG. 2( b)correspond to the lower surface of a mature leaf. FIG. 2( c) correspondsto a shoot with young leaves. Description applies to vines grafted onFreedom.

DETAILED BOTANICAL DESCRIPTION

The following botanical description represents a three season evaluationobserved in an approximately four to six year old grapevine. In allsites, vines are cane pruned on an overhead trellis system (grape arbor)and the descriptive data are from commercial handled clusters.

Leaves

-   -   Young Leaves:    -   Color of upper surface of first 4 distal unfolded leaves.—Yellow        with bronze spots.    -   Color of lower surface of first 4 distal unfolded leaves.—Green.        Density of prostrate hairs between veins at lower surface of 4th        distal unfolded leaf-Absent.    -   Density of erect hairs between veins at lower surface of 4th        distal unfolded leaf.—Absent.    -   Density of prostrate hairs on veins at lower surface of 4th        distal unfolded leaf.—Sparse.    -   Density of erect hairs between veins at lower surface of 4th        distal unfolded leaf.—Absent.

Mature Leaves:

-   -   Average length.—About 18.5 cm.    -   Average width.—About 11.5 cm.    -   Size of blade.—Medium.    -   Shape of blade.—Pentagonal.    -   Number of lober.—5.    -   Anthocyanin coloration of main veins on the upper side of the        blade.—Absent.    -   Mature leaf profile.—Undulate.    -   Blistering surface of blade upper surface.—Weak.    -   Shape of teeth.—Mixture of both sides straight and both sides        convex.    -   Length of teeth.—Medium.    -   Ratio length/width of teeth.—Medium.    -   General shape of petiole sinus.—Lobes slightly overlapped    -   Tooth at petiole sinus.—Absent.    -   Petiole sinus limited by veins.—Absent.    -   Shape of upper lateral sinus.—Lobes slightly overlapped.    -   Depth of upper lateral sinus.—Deep.    -   Prostrate hairs between veins on lower surface of blade.—Absent        or very sparse.    -   Erect hairs between veins on lower surface of blade.—Absent.    -   Density of prostrate hairs on main veins on lower surface of        blade.—Very sparse.    -   Density of erect hairs on main veins on lower surface of        blade.—Absent or very sparse.    -   Prostrate hairs on main veins on upper surface of blade.—Absent.

Flowers General:

-   -   Flower sex.—Perfect.    -   Position of first flowering node.—From 3rd node.    -   Number of inflorescences per shoot.—About 1 to 2.    -   Date of full bloom.—Around November 15^(th), Central valley of        Chile.    -   Duration of bloom period.—On average, about 7 days.    -   Time of bloom.—Medium, around, November 8^(th), Central valley        of Chile.    -   Calyptra color.—Green.    -   Ovary color.—Green.    -   Stamens.—Erect.    -   Pistil.—Well developed.

Fruit General:

-   -   Ripening period.—Midseason. About one week after of “Black        Seedless” and “Midnight Beauty” and three to four weeks ahead        “Autumn Royal” in the growing area of Aconcagua valley (Los        Andes), Chile.    -   Use.—Fresh market.    -   Keeping quality.—Good.    -   Shipping quality.—Good.    -   Date of first harvest.—Feb. 19, 2008.    -   Solids-sugar.—Refractometer test about 19-21° Brix.    -   Acid.—Acid about 0.9-1%.    -   Juice pH.—About 3.5.    -   Sugar/acid ratio.—About 20.    -   Tendency to crack.—None.    -   Sensitivity to sunburn.—None.

Cluster:

-   -   Bunch size (peduncle excluded).—Large.    -   Bunch length (peduncle excluded).—About 19-20 cm.    -   Bunch width.—About 15-17 cm.    -   Bunch weight.—Between 600-800 gr.    -   Bunch density.—Medium.    -   Number of berries.—Between 90-120.    -   Form.—Conical.

Peduncle:

-   -   Length of peduncle.—About 4-5 cm.    -   Lignification of peduncle.—Medium.    -   Color.—Green.

Berry:

-   -   Size.—Large.    -   Uniformity of size.—Medium.    -   Berry weight.—About 8 gr.    -   Shape.—Broad ellipsoid and narrow ellipsoid.    -   Presence of seeds.—Rudimentary. Berries containing 2 to 3        rudimentary soft seed traces. Occasionally, depending on        location and the season, some few berries contain 1 seed.    -   Cross section.—Circular.    -   Dimensions.—Longitudinal axis about 24 mm; horizontal axis about        22 mm    -   Skin color (without bloom).—Blue black.    -   Flesh color.—Weak.    -   Juiciness offlesh.—Juicy.    -   Berry firmness.—Firm.    -   Particular flavor.—Other than Muscat, foxy or herbaceous.    -   Bloom (cuticular wax).—Medium.    -   Pedicel length.—About 10 mm    -   Berry separation from pedicel.—Difficult.

Skin:

-   -   Thickness.—Thick, about 0.5 mm    -   Texture.—Smooth.    -   Reticulation.—Absent.    -   Roughness.—Absent.

Seed:

According to observations of three productive seasons and threedifferent locations, the variety was phenotypically classified asrudimentary. The berries contain 2 to 3 red rudimentary soft seed traceper berry. Occasionally, depending on location and the season, some fewberries contain 1 seed.

Vine General:

-   -   Size.—Large.    -   Vigor.—Vigorous.    -   Density offoliage.—Dense.    -   Productivity.—Very productive, about 24 to 27 Kg/vine.    -   Root stock.—Freedom.

Canes Young Shoot:

-   -   Form of tip.—Fully open.    -   Intensity of anthocyanin coloration of tip.—Absent or very weak.    -   Density of prostrate hairs on tip.—Medium.    -   Density of erect hairs on tip.—Absent or very sparse.

Shoot:

-   -   Attitude during flowering on shoot which are not        tied.—Semi-erect.    -   Color of dorsal side of internodes.—Green and red.    -   Color of ventral side of internodes.—Green and red.    -   Color of dorsal side of node.—Green and red.    -   Color of ventral side of nodes.—Green and red.    -   Density of erect hairs on nodes.—Absent or very sparse.    -   Erect hairs on internode.—Absent or very sparse.    -   Density of prostrate hairs on nodes.—Absent or very sparse.    -   Density ofprostrate hairs internodes.—Absent or very sparse.

Woody Shoot:

-   -   Internode length.—Short or medium, about 5.5 to 13.0 cm.    -   Cross section.—Circular.    -   Surface texture.—Smooth.    -   Main color.—Yellowish brown.

Buds:

-   -   Cane bud fruitfulness.—Basal most fruitful.    -   Time of bud burst.—September 22^(nd), Central area.

Tendrils:

-   -   Length of tendrils.—Medium, about 19 to 21 cm.

1. A new and distinct variety of grapevine as herein illustrated anddescribed.